code: def get_client(client=None):
      return default_client() if client is None else client
  
imports: from threading import Lock
  from asyncio import InvalidStateError
  from cuml.internals.import_utils import check_min_dask_version
  from cuml.common import device_of_gpu_matrix
  from dask.distributed import default_client, wait
  import time
  import random
  import dask
  import logging
  import os
  from cuml.internals.safe_imports import gpu_only_import
label_desc: Use image node_id 5 for calling a global function with example usage: get_client(client) and returns: unknown